Not just Gearbox
I can't even remember the last time I played a game that didn't have at least one blatant bug, and I haven't even played Skyrim.
(jonbobrolls off the tongue, Tue 12 Feb 2013, 21:33,
Reply)

I even broke one of the achievements in FTL...games are so complex now that they'll probably never be bug-free.
I've been in video game QA for the last few years and the primary concern is making sure the player can do everything without the game crashing or their save being deleted (of which some modern games still fail at).